Measuring device for box-covering machines



(No Model.)

. A.'G. POTTER. MEASURING DEVICE FOR BOX COVERING MACHINES. Nof50'7,451.

Patented Oct. 24, 1893.

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Unrran STATES PATE T Fr es.

ALBERT G. POTTER, OF LYNN, MASSACHUSETTS.

MEASURING DEVICE FOR BOX-COVERING MACHINES.

SPECIFICATION forming part of Letter 3 Patent No. 507,451, dated October24, 1893.

Application filed March 13,1893. Serial No. 465,811. (No model.)

To aZZ whom it may concern:

3e it known that I, ALBERT G. POTTER, a citizen of the United States,and a resident of Lynn, in the county of Essex and State ofMassachusetts, have invented new and useful Improvements inPaper-Measuring Devices for Paper-Box-Oovering Machines, of which thefollowing, taken in connection with the accompanying drawings, is aspecification.

Thls invention relates to improvements in a paper measuring device forpaper box covering machines, and it has for its object the measuring ofthe strip needed for covering or trimming the sides, or tops or bottomspreparatory to cutting said strips, thus preventing a waste of paper orthe liability of cutting too short a strip for the trimming or coveringof the box as will hereinafter be more fully shown and describedreference being had to the accompanying drawings, wherein-- Figure 1represents a vertical section of a paper box covering machine providedwith my improved measuring device. Fig. 2 represents a detail sideelevation of said measuring device; and Fig. 3 represents a crosssectionon the line 33 shown in Fig. 2.

Similar-letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

In Fig. 1, A represents the frame of a paper box covering machine, and13 represents the paper roll as usual mounted in bearings therein and 1)represents the paper strip or ribbon which after being pasted and cutoff to the required length is pasted on the paper box 0, which istemporarily held on the box former D and rotated on the spindle d as iscommon in machines for covering the sides and ends of paper boxes.

E is the paste roller, e the paste containing trough, and f, g, h, andz' are guide rollers for the paper strip as usual.

K is the stationary knife and kis the mov= able rocker knife by means ofwhich the paper strip is severed at the desired time, preferably by thedepression of a spring pressed treadle it which is shown as beingconnected 113;) the rocker knife by means of a link It in The above is ageneral description of an ordinary paper box covering machine forcovering the sides and ends of paper boxes and their covers, whichmachine is equally applicable for covering the tops of box covers andbottom of the box bodies by the substitution for the rotary box frame Dof a corresponding box former one kind of which is fully shown in thePatent No. 410,920, granted to me September 10, 1889. It is to thisclass of machines that my paper measuring device is applicable and theabove is merely shown and described for the better understanding of theworkingand operation of said measuring device which is constructed asfollows:

To the under side of the frame A above the guide roller i is secured aplate L having a stud I attached to it on which is looselyjournaled themeasuring gear M.

N is a coiled spring, one end of which is attached to the hub of saidmeasuring gear M and the other end attached to the plate L as shown inFig. 2.

m is a projection on the measuring gearM which is normally held incontact with a stop projection Z on the plate L by the influence of thespring N shown in Fig. 2.

The teeth of the measuring gear M mesh in the teeth of a pinion n, whichis loosely journaled on a stud or pin 91. attached to the plate L.

'n" is a gear attached to the pinion M, an having its teeth meshing inthe teeth of apinion I attached to the shaft 1' of the guide roller 2'as shown in Figs. 2 and 3.

O is an adjustable stop projection preferably made on a plate or wing Opivoted on the stud Z and having a curved slot Othrough which a binderscrew 0 passes, which latter is screwed through one of several screwthreaded perforations Z", Z", in the frame L as shown.

The pasted paper strip b, as it is being drawn forward by the operatorand pasted on the box 0, causes the rollere' to rotate by which, and theintermediate bearing above described, a partial rotary motion isimparted to the gear M until its projection m comes in contact with theadjustable projection 0, when it and the roller i are stopped causing anin creased tension on the paper strip to be given to it bythe frictionalresistance to be overcome against the now stationary roller 71 by whichthe operator will know that the proper length of paper strip forcovering the box has been drawn forward, and he therefore severs thestrip by depressing the treadle 7c and its knife 7a. As soon as thepaper is cut the roller 2' is liberated and caused to turn backward bythe influence of the spring N until the projection m on the gear M comesagainst the stop projection Z on the frame or plate L 1 as shown in Fig.2.

, By adjusting the position .of the stop projection 0 relative to thestop projection Z" the length of strip needed for various sizes of boxesis regulated. Instead of the spring N may be used a cord and weight toequal advantage without departing from the essence of my invention.

Having thus fully described the nature, construction, and operation ofmy invention, I wishtosecu-re by Letters Patent and claim- 1. Thecombination with a paper box covering machine, of a paper stripmeasuring device, consisting of a measuring-gear, a paper guide rollerrotated by the movement of the paper through the machine and geared tothe measuring-gear, means for limiting the rotatation of the measuringgear-in one direction, and means for rotating said measuring-gear backto its normal position, substantially as ,1

and for the purposes described.

2. The combination with a paper box-coveringimachine, of a paperguide-roller rotated by the movement of the paper through the machine, ameasuring-gear geared to said guide-roller, a cutter for severing thepaper, a stop mechanism for limiting the motion of the measuri-nggear inone direction, and means for rotating the measuring-gear back to itsnormal position when the paper is severed by the cutter, substantiallyas described.

3. The combination with a paper box-covering machine, of a paperguide-roller rotated by the movement of the paper through the machine, ameasuring-gear geared to the paper guide-roller, a stop mechanism forlimiting the motion of the measuring-gear in :one

direction, and a restoring spring tortnrning the measuring-gear back toits normal position, substantially as and for the purposes specified.

In testimony whereof I 'havesigned my name to this specification, in thepresence of two subscribing witnesses, on this 20th day of February, A.D, 1893.

ALBERT G. POTTER.

Witnesses:

ALBAN ANDREN, ALICE A. PERKINS.

